Choosethewordsorexpressionsandcompletethepassage(选择最恰当的...
问题详情:
Choose the words or expressions and complete the passage (选择最恰当的单词或词语,完成短文)
An agriculture expert in West Africa once wrote about methods of how to kill mice without a lot of money. These methods are used by some local farmers. This expert in Mali said his gardener set four traps(陷阱)with this method—and caught one hundred and fifty ___1___ in just one night.
The trap is easy to make. You need a plastic bucket (桶) that is empty and uncovered. Dig a hole in the ground and place the bucket inside. The top should be the same level with the ___2___ of the ground. Fill the bucket with water to within eight centimeters of the top. Add small pieces of food wastes. These food wastes should float (漂浮)___3___. Also put some wastes on the ground near the trap.
During the night, mice will come out to ___4___ food wastes. They will fall into the trap.
If you don't have enough food to float, you can try another way. Put two pieces of cloth over the top of the bucket or the hole in the ground. I-cave a small opening where the pieces of cloth meet
Put a little food wastes on the cloth. When mice walk onto the cloth to eat, they will slide through opening into the water.
At one time or another, most farmers have problems with mice. Mice cat a lot of rice. They also carry diseases. People get ___5___ from eating or touching the rice that mice have got into.
There are other ways that farmers can __6__ these problems. One way is to use buildings specially designed to keep mice out. Another way is to use poisons (毒*)to kill the mice. However, both of these methods can be costly.
Farmers must buy die materials to build the buildings. Or they must buy chemical poisons to Jail the mice. But these poisons can also be __7___ to other living things—including the farmers who use them.
1. A) cats B) mice C) D) chickens
2. A) surface B) cover C) D) halfway
3. A) on the trap B) on the top C) on the water D) on the ground
4. A) drink B) eat C) make D) hide
5. A) a fever B) a cold C) sick D) a headache
6. A) deal with B) get on C) take care D) cut down
7. A) various B) dangerous C) nervous D) precious
【回答】
1B 2A 3C 4B 5C 6A 7B
知识点:日常生活类
题型:完型填空
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对于一定量的理想气体,下列说法正确的是______。(选对一个给3分,选对两个给4分,选对3个给6分。每选错一...
问题详情:对于一定量的理想气体,下列说法正确的是______。(选对一个给3分,选对两个给4分,选对3个给6分。每选错一个扣3分,最低得分为0分) A.若气体的压强和体积都不变,其内能也一定不变 B.若气体的内能不变,其状态也一定不变 C.若气体的...
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某有机物结构简式为,下列关于该有机物的说法中不正确的是( )A.遇FeCl3溶液显紫*B.与足量的*氧化*溶...
问题详情:某有机物结构简式为,下列关于该有机物的说法中不正确的是()A.遇FeCl3溶液显紫*B.与足量的*氧化*溶液在一定条件下反应,最多消耗NaOH3molC.能发生缩聚反应和加聚反应D.1mol该有机物与溴发生加成反应,最多消耗1molBr2【回答】解析A项,有机物分子中存在*羟基,所以...
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下列反应的离子方程式正确的是( )A.在碳**镁溶液中加入足量Ca(OH)2溶液:Mg2++2HCO3-+C...
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图3-2-3中是四个图形,则下面对图形的叙述正确的个数是( )图3-2-3①线段AB与*线MN不相交 ②点...
问题详情:图3-2-3中是四个图形,则下面对图形的叙述正确的个数是( )图3-2-3①线段AB与*线MN不相交 ②点M在线段AB上③直线a与直线b不相交 ④延长线*线AB,则会通过点CA.0 B.1 C.2 D.3【回答】思路解析:“*线MN”不仅告诉我们MN是...
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